text: When clouds are present, the loss rate of SO is faster than can be explained by gas phase chemistry alone. This is due to reactions in the liquid water droplets.
  ;Hydrolysis
  Sulfur dioxide dissolves in water and then, like carbon dioxide, hydrolyses in a series of equilibrium reactions:
  :SO (g) + HO  SO·HO
  :SO·HO  H + HSO
  :HSO  H + SO
  ;Oxidation
  There are a large number of aqueous reactions that oxidize sulfur from S(IV) to S(VI), leading to the formation of sulfuric acid. The most important oxidation reactions are with ozone, hydrogen peroxide and oxygen (reactions with oxygen are catalyzed by iron and manganese in the cloud droplets).